After opening a large file (in this case, 61M, uncompressed), attempting to paste a search for any large strings becomes very slow since the search stalls as each new character is added and the search restarts. This happens even when an entire string is pasted in.
Perhaps a quick check against file-size could be made at the time of loading, and, if the file exceeds some (arbitrary, or user-defined) cutoff, incremental search could be disabled by default?